persistent_value

PersistentTensor owns a retained tensor value and its optional append capacity by composition. Its move-only AppendLease reserves writable tails, grants at most one in-place extension per invocation, and owns the contiguous growth policy. AppendReservation exposes only the new region: the kernel initializes it directly, then seals the candidate with Commit. Sealing does not publish feedback state. Ordinary Tensor copies and borrowed views carry no such permission. PersistentValue preserves whole structured and encoded feedback values, using PersistentTensor for tensor leaves.

Reservations record allocations, copied bytes and reuse directly through the optional RuntimeContext supplied to Reserve when its existing events_enabled option is true. Reports appear in the shared RuntimeContext::events() log as kPersistentStorage events. Their storage_* fields describe the work for that event, independently of the consuming operator. There is no separate statistics object or cumulative counter state; consumers sum fields from the event list when totals are needed.

Warning

doxygenfile: Cannot find file “onnx_core/runtime/persistent_value.h